In House M.D., which actress portrayed Dr. Remy “Thirteen” Hadley?

Olivia Wilde portrayed Dr. Remy “Thirteen” Hadley in House M.D.

Thirteen joins House's diagnostic team during the fourth season after the hospital's unusual team-selection process. Her character is a skilled physician who keeps much of her private life guarded. The nickname “Thirteen” comes from her numbered position among the applicants competing for places on House's new team.

The character's medical and personal stories become especially important as the series progresses. Thirteen is diagnosed with Huntington's disease, a hereditary neurological disorder, and the possibility of developing symptoms affects her relationships and decisions. This storyline also connects her to another physician, Dr. Eric Foreman.

Wilde played Thirteen as a recurring and regular cast member across multiple seasons, with periods away from the hospital. The character is sometimes confused with Dr. Allison Cameron, another female physician on House's teams, but Cameron was played by Jennifer Morrison. Thirteen's nickname and Wilde's performance are distinct parts of the show's later ensemble.